In 1968 a new type of pollen trap was devised for geological purposes. It gave quantitative results even when pollen grains were only present in the atmosphere at low concentrations, and recovered more different types of pollen than earlier traps. The results of the pollen analysis are fed directly into a computer and the accuracy oi the device makes it possible to extend its use to medical, forecasting and agricultural purposes.
Cour, P. and Bousquet, J., "Predicting Crop yields from Pollen Counts" (1981). Co. Paper 133.
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